Abstract. In this work, a new species of Bensonella, B. didoi, is described from Lao Cai province in northern Vietnam. The new species is compared to all similar congeners and is characterised by the whitish, nearly conical shell with nine apertural barriers and a very narrow umbilicus. Following this work, the number of Bensonella species known from Vietnam becomes three, distributed in Lao Cai and Son La provinces. Additionally, B. boettgeri
(Möllendorff, 1897) is reported for the first time from Vietnam, extending the distribution of the species eastwards.
Key words. apertural barriers, Pupilloidea, taxonomy, Southeast Asia
Read article here: RBZ-2026-0005